| 초록 |
Developing efficient electrocatalysts for alkaline hydrogen evolution reaction (HER) is highly desirable for ecofriendly H2 production in water splitting system but still challenging. In this study, we present a nanostructured NiCoP-WOx as efficient and durable electrocatalysts in alkaline HER. WOx nanowires effectively transport charges to the NiCoP nanosheets. The NiCoP nanosheets grown on WOx nanowires provide excessive active sites for splitting water molecules to H2. As a result, our hierarchical 2D-nanosheet/1D-nanowire structured NiCoP-WOx demonstrates excellent HER activity, requiring low overpotentials of 49 mV for 10 mA/cm2 current density, exhibiting high electrochemical stability for over 60 h in 1 M KOH. This hetetrostructuring engineering in current study offers not only efficient electrocatalysts but also promising, useful strategy to develop functional 1D/2D materials for advanced energy applications. |
